(function(doc, win) {
	var htmlFont = function() {
		var docEl = doc.documentElement,
			l = docEl.clientWidth,
			f;
		f = l / 15;
		l > 750 ? docEl.style.fontSize = 50 + "px" : docEl.style.fontSize = f + "px";
	};
	htmlFont();
	win.addEventListener("resize", htmlFont, false);
})(document, window);